Journal
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
Volume 640, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.colsurfa.2022.128490
Keywords
Mussel-inspired chemistry; Superhydrophobic paper; Oil; water separation; Antibacterial activity; Photocatalytic degradation
Categories
Funding
- National Natural Science Foundation of China [21965016, 21566020]
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This study fabricates a multifunctional paper with superhydrophobicity, antibacterial activity, oil absorption capability, and photocatalytic degradation ability through the treatment of polydopamine and n-dodecyl mercaptan. This paper shows great importance in the treatment of oily wastewater and environmental remediation.
Oily wastewater and organic dye wastewater discharged from modern industry have given rise to serious environmental pollution problem. Noticeably, the integration of superhydrophobicity and photocatalysis provides a facile and efficient way to address these issues. Inspired by mussel-chemistry, we fabricated a multifunctional paper through polydopamine (PDA)-induced in situ growth of Ag nanoparticles (Ag NPs) on paper surface followed by treatment with n-dodecyl mercaptan (n-DM). The resultant paper (PDA@Ag@n-DM) not only exhibited superhydrophobicity, but also displayed excellent antibacterial activity attributing to synergetic effect from bacterial adhesion resistance and photocatalytic bactericidal action. The PDA@Ag@n-DM paper showed good oil absorption capability, excellent separation properties for oil-water mixtures and water-in-oil emulsions, and obvious photocatalytic degradation ability for organic dye under visible light irradiation. Moreover, the PDA@Ag@n-DM paper presented enhanced mechanical, environmental and chemical stability. We believed that the as-prepared multifunctional paper will have great application promising in oily wastewater treatment and environmental remediation.
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